CN204679108U - A kind of integration of the multiparameter based on infrared laser technology fluid sensor - Google Patents
A kind of integration of the multiparameter based on infrared laser technology fluid sensor Download PDFInfo
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- CN204679108U CN204679108U CN201520210964.9U CN201520210964U CN204679108U CN 204679108 U CN204679108 U CN 204679108U CN 201520210964 U CN201520210964 U CN 201520210964U CN 204679108 U CN204679108 U CN 204679108U
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Abstract
The utility model relates to a kind of multiparameter based on infrared laser technology integration fluid sensor, comprise light path modulation unit, photoelectric signal transformation unit and signal processing module, light path modulation unit adopts the infrared light of semiconductor laser with tunable modulation different wavelength range, is respectively used to temperature survey, particle detection and Infrared spectroscopy through the first beam splitter, the second beam splitter; Infrared measurement of temperature signal is converted to electric signal by photodetector by photoelectric signal transformation unit, by photoelectric receiving tube, particle projection signal is converted to electric signal, by detecting device, interference light signal is converted to infrared spectrum information; Signal processing module utilizes amplifying circuit to carry out amplification conditioning to small electrical signals, by infrared spectrum comparative analysis determination content of material, and integrates each supplemental characteristic of fluid and uses convergence algorithm to carry out logic verify, final output digit signals.On-line measurement while the utility model only adopts infrared laser technology to achieve multiple fluid parameter by single-sensor structure.
Description
Technical field
The present invention relates to a kind of multiparameter based on infrared laser technology integration fluid sensor, belong to fluid online diagnosing technique of support shaft field.
Background technology
Quick as one, efficient and eco-friendly analytical technology, the application of NIR Analysis in petrochemical complex is more and more subject to the most attention of people.For one test sample, the multiple character of NIR Analysis Simultaneously test is adopted then more to be conducive to the performance of NIR Analysis feature.
Viscosity index is the important parameter characterizing lubricating oil viscosity-temperature performance, also be one of important quality index in API classification, the rapid analysis setting up base oil viscosity index controls the production run of lube base oil and the development of lubricating oil, allotment have important directive significance.Current viscosity index is by measuring 40 e and 100 e viscosity calculations, and Measures compare is complicated, and adopts NIR Analysis likely to measure base oil viscosity index quickly and easily,
Oil Monitoring Technique, on the one hand can the quality state of analytical equipment used-oil effectively by equipment used-oil regular sampling analysis, instructs and changes oil depending on feelings, guarantee the proper lubrication of equipment; On the other hand then can the state of wear of analysis and judgment equipment and the reason of wear-out failure effectively, the condition based maintenance of coaching device and maintenance, guarantee equipment safety operation.
Moisture in Lube Oil & content is one of important indicator of oil liquid monitoring.The existence of moisture, oil oxidation can be impelled to go bad, destroy the formation of oil film, lubricant effect is deteriorated, causes the burn into corrosion of equipment, make oil product easily produce sediment, and adjuvant (especially metallic salt) can be made hydrolysis reaction to occur and lost efficacy, produce precipitation, blocking oil circuit, hinder circulation and the supply of lubricating oil.Moreover, the moisture of lubricating oil, when serviceability temperature is low, owing to making lubricating oil flow be deteriorated close to freezing point, viscosity-temperature characteristics degenerates; And during serviceability temperature height, water can be vaporized, not only destroy oil film but also produce vapour lock, affecting the circulation of lubricating oil.Infrared spectrum is the new technology constantly applied in oil liquid monitoring in recent years, it can from the level of material molecule, according to lubricating oil component Zhong Ge functional group to the appearance of infrared spectrum absorpting peak and change, qualitative or that the deterioration of understanding lubricating oil is rotten quantitatively degree, operating process is simply accurate.Moisture in infrared spectroscopic determination lubricating oil is exactly one of its application.
Summary of the invention
The object of the invention is to propose a kind of integrated transducer adopting infrared laser technology to carry out fluid multiparameter simultaneously to detect, single-sensor structure can be utilized to measure multiple parameter information such as viscosity, temperature, granularity, acid number, liquid water content of fluid simultaneously, and sonde configuration is integrated, miniaturization, simple installation, detection speed is fast, precision is high, is beneficial to real-time state monitoring and the analysis of fluid.
To achieve these goals, technical scheme of the present invention is as follows.
A kind of integration of the multiparameter based on infrared laser technology fluid sensor, comprise light path modulation unit, photoelectric signal transformation unit and signal processing module, wherein, light path modulation unit is connected with photoelectric signal transformation unit, signal processing module and photoelectric signal transformation unit are interconnected, light path modulation unit adopts the infrared light of semiconductor laser with tunable modulation different wavelength range, is respectively used to temperature survey, particle detection and Infrared spectroscopy through the first beam splitter, the second beam splitter; Infrared measurement of temperature signal is converted to electric signal by photodetector by photoelectric signal transformation unit, by photoelectric receiving tube, particle projection signal is converted to electric signal, by detecting device, interference light signal is converted to infrared spectrum information; Signal processing module utilizes amplifying circuit to carry out amplification conditioning to small electrical signals, by infrared spectrum comparative analysis determination content of material, and integrates each supplemental characteristic of fluid and uses convergence algorithm to carry out logic verify, final output digit signals.
The light path process of said system is that semiconductor laser with tunable sends infrared laser, and after the first beam splitter, a part of infrared laser arrives lens combination, in addition a part by the first beam splitter through oily path by photodetector and photoelectric receiving tube receive; Infrared laser through lens combination continues arrival second beam splitter that moves ahead, and a part of infrared laser is reflected by horizontal glass, another part infrared laser through oily path detect by detecting device; Through the part infrared laser of the second beam splitter receive by index glass and reflect.
According to lambert beer law, the liquid water content parameter of fluid can calculate by measuring H-OH functional group, and acid number parameter can calculate by measuring COOH functional group, and viscosity index then can calculate by measuring X-H functional group.All there is different spectrum peak positions in this three classes functional group in infrared spectrum, by controlling working current and the working temperature of semiconductor laser with tunable, the infrared light that can produce different wavelength range goes to measure different functional groups, and then calculates viscosity, temperature, granularity, acid number, the liquid water content parameter of fluid.
This beneficial effect of the invention is: on-line measurement while the present invention only adopts infrared laser technology to achieve multiple fluid parameter by single-sensor structure, comprises viscosity, temperature, granularity, acid number, liquid water content.
Accompanying drawing explanation
Fig. 1 be in the embodiment of the present invention use multiparameter integration fluid sensor construction schematic diagram.
Fig. 2 be in the embodiment of the present invention use multiparameter integration fluid sensor internal light path schematic diagram.
Description of symbols in figure: 1, semiconductor laser with tunable; 2, the first beam splitter; 3, lens combination; 4, horizontal glass; 5, the second beam splitter; 6, index glass; 7, oily path; 8, photodetector; 9, photoelectric receiving tube; 10, detecting device.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described, better to understand the present invention.
Embodiment
As shown in Figure 1 the integration of the multiparameter based on infrared laser technology fluid sensor, comprise light path modulation unit, photoelectric signal transformation unit and signal processing module, wherein, light path modulation unit is connected with photoelectric signal transformation unit, signal processing module and photoelectric signal transformation unit are interconnected, light path modulation unit adopts the infrared light of semiconductor laser with tunable modulation different wavelength range, is respectively used to temperature survey, particle detection and Infrared spectroscopy through the first beam splitter, the second beam splitter; Infrared measurement of temperature signal is converted to electric signal by photodetector by photoelectric signal transformation unit, by photoelectric receiving tube, particle projection signal is converted to electric signal, by detecting device, interference light signal is converted to infrared spectrum information; Signal processing module utilizes amplifying circuit to carry out amplification conditioning to small electrical signals, by infrared spectrum comparative analysis determination content of material, and integrates each supplemental characteristic of fluid and uses convergence algorithm to carry out logic verify, final output digit signals.
As shown in Figure 2, the light path process of said system is that semiconductor laser with tunable 1 sends infrared laser, after the first beam splitter 2, part infrared laser arrives lens combination 3, in addition a part by the first beam splitter 2 through oily path 7 by photodetector 8 and photoelectric receiving tube 9 receive; Infrared laser through lens combination 3 continues arrival second beam splitter 5 that moves ahead, and a part of infrared laser is reflected by horizontal glass 4, another part infrared laser through oily path 7 detect by detecting device 10; Through the part infrared laser of the second beam splitter 5 receive by index glass 6 and reflect.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (1)
1.
a kind of integration of the multiparameter based on infrared laser technology fluid sensor, comprise light path modulation unit, photoelectric signal transformation unit and signal processing module, it is characterized in that: described light path modulation unit is connected with photoelectric signal transformation unit, described signal processing module and photoelectric signal transformation unit are interconnected, and described light path modulation unit adopts the infrared light of semiconductor laser with tunable modulation different wavelength range; Infrared measurement of temperature signal is converted to electric signal by photodetector by described photoelectric signal transformation unit; Described signal processing module utilizes amplifying circuit to carry out amplification conditioning, by infrared spectrum comparative analysis determination content of material to small electrical signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520210964.9U CN204679108U (en) | 2015-04-09 | 2015-04-09 | A kind of integration of the multiparameter based on infrared laser technology fluid sensor |
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| CN201520210964.9U CN204679108U (en) | 2015-04-09 | 2015-04-09 | A kind of integration of the multiparameter based on infrared laser technology fluid sensor |
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| CN204679108U true CN204679108U (en) | 2015-09-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017156805A1 (en) * | 2016-03-15 | 2017-09-21 | 山东万圣博科技股份有限公司 | Method for rapidly detecting molecular weight of poly(p-phenylene terephthalamide) resin |
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2015
- 2015-04-09 CN CN201520210964.9U patent/CN204679108U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017156805A1 (en) * | 2016-03-15 | 2017-09-21 | 山东万圣博科技股份有限公司 | Method for rapidly detecting molecular weight of poly(p-phenylene terephthalamide) resin |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20200409 |